| Takahiko Nomaguchi | |
| Position: | Pitcher |
| Birth Date: | 31 May 1983 |
| Birth Place: | Amagasaki, Hyōgo, Japan |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | NPB |
| Debutdate: | May 1 |
| Debutyear: | 2005 |
| Debutteam: | Yomiuri Giants |
| Statyear: | 2009 season |
| Statleague: | NPB |
| Stat1label: | Win–loss |
| Stat1value: | 11–10 |
| Stat2label: | ERA |
| Stat2value: | 4.63 |
| Stat3label: | Strikeouts |
| Stat3value: | 148 |
| Teams: |
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| Highlights: |
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| Update: | 8 December 2008 |
is a Nippon Professional Baseball player for the Yomiuri Giants in Japan's Central League.